WO2009139471A1 - スライディングノズル装置 - Google Patents
スライディングノズル装置 Download PDFInfo
- Publication number
- WO2009139471A1 WO2009139471A1 PCT/JP2009/059087 JP2009059087W WO2009139471A1 WO 2009139471 A1 WO2009139471 A1 WO 2009139471A1 JP 2009059087 W JP2009059087 W JP 2009059087W WO 2009139471 A1 WO2009139471 A1 WO 2009139471A1
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- WO
- WIPO (PCT)
- Prior art keywords
- slide
- metal frame
- slide shaft
- sliding
- fixed
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/28—Plates therefor
- B22D41/34—Supporting, fixing or centering means therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/24—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings characterised by a rectilinearly movable plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/40—Means for pressing the plates together
Definitions
- the present invention relates to a sliding nozzle device that controls the outflow amount of molten metal in a molten metal container, and more particularly to a sliding nozzle device that reduces the burden of plate replacement work.
- the sliding nozzle device includes a fixed plate and a sliding plate, a holding unit that holds each plate, a sliding unit that slides the sliding plate, and a surface that applies a surface pressure between the fixed plate and the sliding plate. Pressure loading means.
- Patent Document 1 a projecting edge projecting from a side portion of a base frame (fixed metal frame) fixed to a bottom portion of a molten metal container and a side portion lower surface of a slide case (slide metal frame) are disclosed.
- the laid rail supports the rollers pivotally attached to both sides of the slide case.
- the end of the rail is an inclined portion, and the surface pressure is released by moving the roller to the inclined portion.
- a stopper is provided between the base frame and the rod connecting portion of the slide case so that the slide case does not move to the inclined portion by mistake during operation.
- Patent Document 2 in order to facilitate the opening / closing operation of the cover (opening / closing metal frame) that covers the plate and reduce the heavy heat work as much as possible, the cover is powered by the power of the opening / closing cylinder that slides the lower plate (sliding plate).
- An invention of a device for opening and closing the door is disclosed.
- An object of the present invention is to provide a sliding nozzle device that can be used for full stroke when controlling the flow rate.
- the present invention provides a fixed metal frame which is installed at the bottom of a molten metal container and holds a fixed plate, and a slide metal which can be opened and closed with respect to the fixed metal frame and holds a sliding plate.
- a sliding nozzle device comprising a frame, sliding means for sliding the slide metal frame, and a spring box that is rotatably mounted on the fixed metal frame and presses the slide metal frame against the fixed metal frame, While the sliding means operates in one direction in conjunction with the sliding means, the spring metal box is released by releasing the pressing of the slide metal frame, and the sliding means is operated in the other direction.
- a plate exchange assisting means for rotating the spring box to press the slide metal frame against the fixed metal frame.
- the present invention also provides a fixed metal frame that is installed at the bottom of the molten metal container and holds a fixed plate, a slide metal frame that can be opened and closed with respect to the fixed metal frame, and holds the sliding plate, and the slide
- a sliding nozzle device comprising: a sliding means for sliding a metal frame; and a spring box that is rotatably mounted on the fixed metal frame and presses the slide metal frame against the fixed metal frame.
- the sliding means operates in one direction
- the pressing of the slide metal frame is released and the spring box is rotated to open the slide metal frame, and the sliding means is moved in the other direction.
- the slide metal frame is closed, and the spring box is rotated, and plate exchange auxiliary means for pressing the slide metal frame against the fixed metal frame is provided.
- the present invention includes a plate replacement assisting means interlocking with the sliding means, and the spring box is rotated by releasing the pressing of the slide metal frame by the plate replacement assisting means while the sliding means operates in one direction.
- the spring box is rotated by the plate replacement assisting means and the slide metal frame is pressed against the fixed metal frame, so that the surface pressure is automatically loaded and released. be able to.
- the pressing of the slide metal frame is released by the plate replacement auxiliary means, the spring box rotates to open the slide metal frame, and the sliding means operates in the other direction.
- the spring box may be rotated so that the slide metal frame is pressed against the fixed metal frame.
- a series of operations for opening and closing the slide metal frame can be performed automatically.
- the plate replacement assisting means includes a slide shaft that moves in the operating direction of the sliding means, an engagement member that is fixed to the fixed metal frame and engages with the slide shaft, and a base end portion that is attached to the slide shaft. And an arm having a distal end connected to the slide metal frame or the spring box, and an engagement pin attached to a base end of the arm is inserted into an engagement groove formed in the engagement member. As the slide shaft is moved, the engagement pin moves in the engagement groove, so that the arm rotates about the slide shaft as a rotation shaft and is connected to the arm.
- the spring box may be rotated in the opening direction or the closing direction.
- the plate replacement assisting means is mounted around the slide shaft that moves in the operating direction of the sliding means, an engaging member that is fixed to the fixed metal frame and engages with the slide shaft, and the slide shaft.
- the spring box or the outer cylinder to which the slide metal frame is fixed, which is rotated with the rotation of the slide shaft, is mounted on the engagement member in an engagement groove formed on the slide shaft.
- the engagement pin is inserted, and the slide shaft is rotated by moving the engagement pin in the engagement groove with the movement of the slide shaft, and with the rotation of the slide shaft,
- the outer cylinder may be rotated, and the spring box or the slide metal frame may be rotated in an opening direction or a closing direction.
- the plate replacement assisting means is mounted around the slide shaft that moves in the operating direction of the sliding means, an engaging member that is fixed to the fixed metal frame and engages with the slide shaft, and the slide shaft.
- the spring box or the outer cylinder to which the slide metal frame is fixed, which rotates with the rotation of the slide shaft, is mounted on the slide shaft in an engagement groove formed in the engagement member.
- the engagement pin is inserted, and the slide shaft is rotated by moving the engagement pin in the engagement groove with the movement of the slide shaft, and with the rotation of the slide shaft,
- the outer cylinder may be rotated, and the spring box or the slide metal frame may be rotated in an opening direction or a closing direction.
- a rack gear is mounted on the slide shaft along the slide shaft, and a pinion gear that meshes with the rack gear is mounted on a pressing screw that compresses or releases the spring stored in the spring box, The pressing screw may rotate as the slide shaft moves to compress or release the spring.
- the plate replacement assisting means has an abutting portion with which the sliding means abuts, the sliding means operates in the other direction to abut against the abutting portion, and the slide shaft is in the other direction. And the plate replacement assisting means is connected to the sliding means by a connecting jig so that the sliding means operates in the one direction and the slide shaft moves in the one direction. Also good.
- the pressure of the slide metal frame is released and the spring box is rotated, the direction in which the slide shaft moves to open the slide metal frame, the slide metal frame is closed, the spring box is rotated and the slide metal frame is rotated.
- the direction in which the slide shaft moves to press the frame against the fixed metal frame is set in advance. In this specification, for convenience, the direction in which the slide shaft moves to release the pressing of the slide metal frame and rotate the spring box to open the slide metal frame is “one direction”, and the opposite direction is “other direction”. I will call it.
- the sliding means operates in the other direction and contacts the contact portion of the plate replacement assisting means, the slide shaft moves in the other direction, the slide metal frame closes, and the spring box rotates to slide.
- the metal frame is pressed against the fixed metal frame. Since the plate replacement assisting means is not connected to the sliding means, the surface pressure is not released even if the sliding means is subsequently operated in one direction. Therefore, according to the present invention, not only the surface pressure is not erroneously released, but also a full stroke can be used when controlling the flow rate of molten steel. Only when the surface pressure is released, the plate replacement assisting means may be connected to the sliding means with a connecting jig, and the sliding means may be operated in one direction.
- the plate replacement assisting means interlocking with the sliding means is provided, and the spring of the slide metal frame is released by the plate replacement assisting means while the sliding means operates in one direction, and the spring is moved. While the box rotates and the sliding means operates in the other direction, the spring box is rotated by the plate replacement auxiliary means and the slide metal frame is pressed against the fixed metal frame, so that the surface pressure is loaded and released.
- the operation can be performed automatically. Furthermore, a series of operations of loading and releasing the surface pressure and opening and closing the slide metal frame can be automatically performed by the plate replacement assisting means. As a result, not only the workability is improved, but also the heavy labor of workers at high temperatures is reduced.
- the sliding means operates in the other direction to contact the contact portion of the plate replacement assisting means, the slide shaft moves in the other direction, and the surface pressure is loaded. Even if the sliding means operates in one direction, the surface pressure is not released. Therefore, not only the surface pressure is not canceled by mistake, but also a full stroke can be used when controlling the molten steel flow rate.
- an engagement groove is formed in the engagement member that engages with the slide shaft, and an engagement pin is attached to the base end portion of the arm to open and close the slide metal frame.
- the engaging member, the engaging groove, and the engaging pin (the engaging member, the engaging groove, and the engaging pin corresponding to claim 6) are used as the first engaging member, the first engaging groove, and the first
- An engagement groove is formed in the slide shaft, and the engagement pin is mounted on the engagement member that engages the slide shaft, and the engagement member in the mechanism that rotates the spring box A groove, and an engagement pin (an engagement member, an engagement groove, and an engagement pin corresponding to claims 3 and 7), a second engagement member, a second engagement groove, and a second engagement pin; Call.
- an engagement groove is formed in the engagement member that engages with the slide shaft, and an engagement pin is attached to the slide shaft, and the engagement member, the engagement groove, and the engagement in the mechanism that rotates the spring box.
- the combination pin (engagement member, engagement groove, and engagement pin corresponding to claims 4 and 8) is referred to as a third engagement member, a third engagement groove, and a third engagement pin.
- FIG. 1 A view of the sliding nozzle device 10 according to the first embodiment of the present invention viewed from the bottom is shown in FIG. 1, and a cross-sectional view of the sliding nozzle device 10 viewed from the sliding direction is shown in FIG.
- FIG. 3 shows an explanatory diagram for explaining the mechanism of the plate replacement assisting means 20.
- the side where the hydraulic cylinder 19 is installed is called “front”, and the opposite side is called “back” for convenience.
- the direction in which the spring box 12 and the slide metal frame 17 are opened and the direction in which the compression of the coil spring 32 is released are defined as the “positive” direction, and the opposite direction is defined as the “negative” direction.
- the sliding nozzle device 10 includes an upper plate 13u (fixed plate) and a lower plate 13d (sliding plate), a fixed metal frame 18 that holds the upper plate 13u, a slide metal frame 17 that holds the lower plate 13d, and a slide metal.
- the surface pressure is applied in conjunction with the hydraulic cylinder 19.
- a plate replacement assisting means 20 for automatically performing a series of operations of releasing and opening and opening and closing the slide metal frame 17.
- the upper plate 13u is fixed to the bottom surface of the molten metal container 11 via a fixed metal frame 18, and the upper nozzle 15 is connected to the nozzle hole 14u serving as a passage for the molten steel.
- the lower plate 13d is fixed in a slide metal frame 17 provided so as to be openable and closable with respect to the fixed metal frame 18, and a lower nozzle 16 is connected to a nozzle hole 14d serving as a passage for molten steel.
- the lower plate 13d slides along the lower surface of the upper plate 13u.
- the fixed metal frame 18 extends in the sliding direction of the slide metal frame 17, and a hydraulic cylinder 19 is installed at one end in the extending direction.
- the tip of the rod 19a of the hydraulic cylinder 19 is fitted in a T-shaped notch 17a formed at one end of the slide metal frame 17. Since the connecting portion between the rod 19a of the hydraulic cylinder 19 and the slide metal frame 17 is a T-shaped notch 17a, the slide metal frame 17 can be opened and closed without interfering with the rod 19a.
- the plate replacement assisting means 20 includes a pair of slide shafts 21 and 22 having a circular cross section that are arranged in parallel on both sides of the slide metal frame 17 and extend in the sliding direction of the slide metal frame 17, and a pair of slide shafts 21 and 22.
- the slide shafts 21 and 22 are provided between the front end portions of the front flange and a horizontal member 33 that is rotatably mounted.
- the pair of slide shafts 21 and 22 are respectively supported by three bearings 29 fixed to the fixed metal frame 18, and the plate replacement auxiliary means 20 moves integrally in the sliding direction of the slide metal frame 17. To do.
- the horizontal member 33 is provided with a sliding force transmission portion 34 for transmitting the sliding force of the hydraulic cylinder 19 to the plate replacement auxiliary means 20.
- the sliding force transmitting portion 34 is formed with an abutting portion 35 with which a projecting portion 36 provided on the rod 19a of the hydraulic cylinder 19 abuts.
- the pair of slide shafts 21 and 22 move in the other direction (in this embodiment, the direction in which the nozzle hole 14u is closed).
- a pin hole 35a is formed in the contact portion 35, and a rod 19a of the hydraulic cylinder 19 is inserted by inserting a connection pin 39 (connection jig) into the pin hole 35a (see FIGS. 5 and 6).
- connection pin 39 connection jig
- One slide shaft 21 is provided with a base end portion 24 a of an arm 24 whose tip is connected to the slide metal frame 17, and the arm 24 moves in the movement direction of the slide shaft as the slide shaft 21 moves.
- the arm 24 is rotated about the slide shaft 21 as a rotation axis, and the slide metal frame 17 is opened and closed.
- the slide metal frame 17 and the arm 24 are connected to a connection hole 55 (see FIG. 10) formed at the tip of the arm 24 by connecting the connection pin 51 attached to the slide metal frame 17 to the horizontal member 33 side. It is done by inserting from.
- the connection pin 51 is removed from the connection hole 55, and the connection is released, so that the slide metal frame 17 is slid during the flow rate control.
- the arm 24 and the slide shaft 21 do not move.
- the connecting jig is not limited to the connecting pin 39 that inserts the pin tip into the pin hole 35a.
- a jig that fits the concave and convex portions of the slide metal frame 17 and the arm 24 and connects both of them.
- An arbitrary jig having a configuration for connecting the slide metal frame 17 and the arm 24 can be used.
- a first engagement pin 26 is attached to the base end 24 a of the arm 24, and the first engagement pin 26 partially covers the slide shaft 21 fixed to the front flange bearing 29. It is inserted into a first engagement groove 25 formed in one engagement member 23.
- a rack gear 30 extending in the direction of the slide shafts 21 and 22 is attached to an intermediate portion between the slide shafts 21 and 22. Further, a second engagement groove 27 described later is formed in an intermediate portion between the slide shafts 21 and 22.
- Each slide shaft 21, 22 is inserted into an outer cylinder 37 having a C-shaped cross section, and the rack gear 30 is exposed from an opening 37 a provided on the side surface of the outer cylinder 37. For this reason, when the slide shafts 21 and 22 are rotated, the rack gear 30 is hooked on the opening 37a and the outer cylinder 37 is rotated.
- the slide shafts 21 and 22 are supported by three bearings 29 fixed to the fixed metal frame 18 via the outer cylinder 37.
- the middle bearing 29 is a second engaging member that engages with the slide shafts 21, 22, and a second engaging pin 28 attached to the bearing 29 passes through the outer cylinder 37, and the slide shafts 21, 22.
- the second engaging groove 27 is inserted.
- a spring box 12 having a plate-like pressing portion 12 a that presses the slide metal frame 17 against the fixed metal frame 18 is attached to the outer cylinder 37, and the outer cylinder 37 is rotated as the slide shafts 21 and 22 rotate.
- the spring box 12 fixed to the outer cylinder 37 rotates in the opening direction or the closing direction.
- a coil spring 32 (spring) is housed in the spring box 12, and a pinion gear 31 a that meshes with the rack gear 30 attached to the slide shafts 21 and 22 is attached to one end of the pressing screw 31. Yes.
- the pressing screw 31 is rotated by the rack and pinion mechanism and moved in the screw shaft direction, so that the coil spring 32 is compressed or released.
- one slide shaft 21 is a first engagement groove 25 of the flange
- one slide shaft 21 is a second engagement groove 27 of the flange.
- a plan view is shown.
- the shape of the second engagement groove 27 of the other slide shaft 22 is symmetrical with respect to the movement direction of the slide shafts 21, 22. It is. It is also possible to form the first engagement groove 25 on the other slide shaft 22, and at this time, the shape of the first engagement groove 25 is relative to the movement direction of the slide shafts 21 and 22.
- the first engagement groove 25 of one slide shaft 21 is symmetrical.
- the first engagement groove 25 is formed with a partial spiral groove 25a about the direction of the slide shaft 21 at one end of a linear groove 25b extending in the moving direction of the slide shaft 21.
- the second engagement groove 27 has both ends as straight grooves 27b extending in the moving direction of the slide shafts 21 and 22, and the intermediate portion has the direction of the slide shafts 21 and 22 as axes.
- a partial spiral groove 27a is formed.
- the total length A of the first engagement groove 25 and the total length C of the second engagement groove 27 are the same length, and the length B of the linear groove 25b of the first engagement groove 25 and the second engagement groove 25 are the same.
- the length D from the start end of one linear groove 27b of the joint groove 27 to the end of the partial spiral groove 27a is the same.
- the hydraulic cylinder 19 contracts and the slide shafts 21 and 22 move forward while the connecting pin 39 is inserted into the pin hole 35a of the sliding force transmitting portion 34.
- the rack gear 30 mounted on the slide shafts 21 and 22 rotates the pressing screw 31 of the spring box 12 to release the surface pressure by the spring box 12.
- the slide shafts 21 and 22 are rotated in the forward direction, and the spring box 12 is opened.
- the arm 24 is rotated in the forward direction and the slide metal frame 17 is opened, so that the plate 13 can be replaced.
- the rod 19a of the hydraulic cylinder 19 is expanded and contracted so that the pin hole 35a formed in the contact portion 35 of the sliding force transmitting portion 34 and the pin hole (not shown) provided in the rod 19a are matched. Thereafter, the connecting pin 39 is inserted into the pin hole 35a to connect the rod 19a of the hydraulic cylinder 19 and the plate replacement assisting means 20 (see FIGS. 5 and 6).
- FIG. 11 A bottom view of the sliding nozzle device 40 according to the second embodiment of the present invention is shown in FIG. 11, and a side view of the sliding nozzle device 40 is shown in FIG.
- symbol is attached
- the slide metal frame 17 is rotatably supported by the two arms 44 and 46.
- a rear end portion of one slide shaft 41 is provided with a base end portion of an arm 44 having a distal end portion connected to the slide metal frame 17, and the arm 44 rotates around the slide shaft 41 as a rotation axis.
- the arm 46 is mounted on the slide shaft 41 so as to contact the extended portion 53 extending from the slide metal frame 17 and support the slide metal frame 17 when the sliding nozzle device 40 is set up for plate replacement. It is configured.
- the extending portion 53 and the slide metal frame 17 are in contact with each other on a smooth surface and do not block the opening / closing operation of the slide metal frame 17.
- a cylindrical third engagement member 45 covering the slide shaft 41 is fixed to the front flange bearing 29, and an arm having a tip end connected to the slide metal frame 17 is connected to the third engagement member 45.
- the base end portion of 46 is ringed.
- the arm 46 is rotatable on the third engagement member 45 in the circumferential direction and movable in the moving direction of the slide shaft 41.
- the third engagement member 45 has the slide shaft 42 installed on the side, but the arm is not attached.
- a first engagement member 43 that covers a part of the slide shaft 41 is fixed to the bearing 29 of the rear side, and the first engagement member 43 has a portion whose axis is the moving direction of the slide shaft 41.
- a first engagement groove 47 having a spiral groove is formed.
- a first engagement pin 48 is attached to the proximal end portion of the arm 44, and the first engagement pin 48 is a first engagement groove 47 formed in the first engagement member 43. Has been inserted.
- the third engagement member 45 fixed to the front flange bearing 29 is formed with a third engagement groove 49 having a partial spiral groove with the moving direction of the slide shafts 41 and 42 as an axis.
- a third engagement pin 50 attached to the slide shafts 41 and 42 is inserted into the third engagement groove 49.
- the shape of the third engagement groove 49 is symmetrical with respect to the moving direction of the second engagement groove 27 and the slide shaft in the first embodiment.
- the first engagement pin 48 attached to the base end portion of the arm 44 extends along a partial spiral groove of the first engagement groove 47 formed in the first engagement member 43.
- the arm 44 rotates about the slide shaft 41 as a rotation shaft, and the slide metal frame 17 opens and closes.
- the third engagement pin 50 mounted on the slide shafts 41 and 42 moves along the partial spiral groove of the third engagement groove 49 formed in the third engagement member 45.
- the spring box 12 rotates together with the slide shafts 41 and 42.
- the first engagement member 43 that opens and closes the slide metal frame 17, the first engagement groove 47, and the first engagement pin 48 are not provided.
- the slide metal frame 17 is manually opened and closed.
- FIG. 13 A bottom view of the sliding nozzle device 60 according to the third embodiment of the present invention is shown in FIG. 13, and a side sectional view of the sliding nozzle device 60 is shown in FIG.
- symbol is attached
- the horizontal member 61 laid between the slide shafts 41 and 42 is disposed between the rod 19 a of the hydraulic cylinder 19 and the fixed metal frame 18, and the rear of the horizontal member 61 is hidden.
- a contact portion 61a with which the projecting portion 62 provided on the rod 19a contacts is formed.
- the connecting pin 63 includes a handle 63a on one surface of a prismatic main body 63b, and a pin 63c that is inserted into a pair of pin holes is formed on the other surface of the main body 63b.
- a pair of safety levers that are pivotally supported by the base end portion 64b on the base end portion 64b of the front end of the fixed metal frame 18 and pivoted while the front end portion 64a abuts against the main body 63b of the connecting pin 63. 64 is provided.
- a stopper 65 is installed close to the rear of each safety lever 64, and when the tip end portion 64a of the safety lever 64 tries to rotate backward, the stopper 65 comes into contact with the stopper 65 and cannot rotate. Yes. That is, the tip portions 64a of the pair of safety levers 64 rotate only in the forward direction.
- the connecting pin 63 mounted on the projecting portion 62, when the slide shafts 41 and 42 are moved rearward to apply a surface pressure, the main body 63b of the connecting pin 63 comes into contact with the pair of safety levers 64. The rearward movement of the slide shafts 41 and 42 is prevented. For this reason, when the surface pressure is applied, the connecting pin 63 must be removed in advance. Therefore, it is possible to prevent a human error (release of surface pressure during operation) that occurs when the connection pin 63 is forgotten to be removed after the surface pressure is loaded. Since the fixed metal frame 18 is located closer to the bottom peripheral edge of the protruding portion 62 than the safety lever 64, the protruding portion 62 contacts the safety lever 64 when the slide shafts 41 and 42 are moved. There is nothing.
- the first engagement member is formed with the first engagement groove to open and close the slide metal frame
- the slide shaft is formed with the second engagement groove to rotate the spring box.
- the first engagement groove is formed in the first engagement member, the spring box is rotated, the second engagement groove is formed in the slide shaft, and the slide metal frame is opened and closed.
- the third engagement groove is formed in the third engagement member and the spring box is rotated, but the third engagement groove is formed in the third engagement member. May be formed to open and close the slide metal frame.
- the hydraulic cylinder is a direct acting type, but may be a link type via an arm. It should be noted that the position of the partially spiral groove in the engagement groove changes depending on the object to be rotated.
- This invention can be utilized for the sliding nozzle apparatus which controls the flow rate of the molten steel inject
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Abstract
Description
また、摺動手段が一方向に作動する間に、プレート交換補助手段によって、スライド金枠の押圧が解除され、バネボックスが回動してスライド金枠が開き、摺動手段が他方向に作動する間に、プレート交換補助手段によって、スライド金枠が閉じられた後、バネボックスが回動してスライド金枠が固定金枠に押圧されるようにしてもよく、面圧の負荷及び解除、並びにスライド金枠の開閉の一連の動作を自動で行うことができる。
なお、以下の実施の形態では、スライド軸に係合する係合部材に係合溝が形成されると共に、アームの基端部に係合ピンが装着され、スライド金枠の開閉を行う機構における係合部材、係合溝、及び係合ピン(請求項6に対応する係合部材、係合溝、及び係合ピン)を第一の係合部材、第一の係合溝、及び第一の係合ピンと呼び、スライド軸に係合溝が形成されると共に、スライド軸に係合する係合部材に係合ピンが装着され、バネボックスの回動を行う機構における係合部材、係合溝、及び係合ピン(請求項3、7に対応する係合部材、係合溝、及び係合ピン)を第二の係合部材、第二の係合溝、及び第二の係合ピンと呼ぶ。また、スライド軸に係合する係合部材に係合溝が形成されると共に、スライド軸に係合ピンが装着され、バネボックスの回動を行う機構における係合部材、係合溝、及び係合ピン(請求項4、8に対応する係合部材、係合溝、及び係合ピン)を第三の係合部材、第三の係合溝、及び第三の係合ピンと呼ぶ。
本発明の第1の実施の形態に係るスライディングノズル装置10を底面から見た図を図1に、同スライディングノズル装置10を摺動方向から見た断面図を図2に示す。また、プレート交換補助手段20の機構を説明するための説明図を図3に示す。なお、以下の説明では、油圧シリンダ19が設置されているがわを「前」がわ、その反対がわを「後」がわと便宜上、呼ぶ。また、バネボックス12及びスライド金枠17が開く方向並びにコイルバネ32の圧縮が解除される方向を「正」方向、その逆方向を「負」方向とする。
また、当接部35には、ピン孔35aが形成されており、ピン孔35aに連結ピン39(連結治具)を挿入することで(図5、図6参照)、油圧シリンダ19のロッド19aとプレート交換補助手段20が連結され、プレート交換補助手段20が一方向(本実施の形態では、ノズル孔14uを開口する方向である。)に移動する。
アーム24の基端部24aには第一の係合ピン26が装着されており、第一の係合ピン26は、前がわの軸受29に固着された、スライド軸21を一部覆う第一の係合部材23に形成された第一の係合溝25に挿入されている。
各スライド軸21、22は、断面C形の外筒37に挿入されており、外筒37の側面に設けられた開口部37aからラックギア30が露出している。このため、スライド軸21、22が回動する際に、ラックギア30が開口部37aに引っ掛かり、外筒37を回動させる。各スライド軸21、22は、外筒37を介して、固定金枠18に固定された3つの軸受29によって支持されている。真ん中の軸受29は、スライド軸21、22と係合する第二の係合部材とされ、軸受29に装着された第二の係合ピン28が外筒37を貫通し、スライド軸21、22の第二の係合溝27に挿入されている。
一方、油圧シリンダ19が伸長し、突設部36が摺動力伝達部34の当接部35を押すと、まず、アーム24が負方向に回動し、スライド金枠17が閉じる。次に、スライド軸21、22が負方向に回動し、バネボックス12が閉じる。続いて、スライド軸21、22に装着されているラックギア30がバネボックス12の押圧ネジ31を回転させて、バネボックス12による面圧を負荷する。
先ず、スライド金枠17の押圧を解除してバネボックス12を回動させ、スライド金枠17を開く動作について説明する。
本発明の第2の実施の形態に係るスライディングノズル装置40の底面図を図11に、同スライディングノズル装置40の側面図を図12に示す。なお、第1の実施の形態と同じ構成要素には同じ符号を付し、説明を省略する。
なお、第三の係合溝49の形状は、第1の実施の形態における第二の係合溝27とスライド軸の移動方向に関して対称である。
本発明の第3の実施の形態に係るスライディングノズル装置60の底面図を図13に、同スライディングノズル装置60の側断面図を図14に示す。なお、第1及び第2の実施の形態と同じ構成要素には同じ符号を付し、説明を省略する。
連結ピン63は、角柱状の本体63bの一方の面に取っ手63aを備え、本体63bの他方の面に、一対のピン孔に挿入されるピン63cが形成されている。
連結ピン63を突設部62に装着した状態で、スライド軸41、42を後方向に移動して面圧を負荷しようとすると、連結ピン63の本体63bが一対の安全レバー64に当接してスライド軸41、42の後方向への移動を阻止する。このため、面圧を負荷する際には、予め連結ピン63を外さなければならない。従って、面圧負荷後に連結ピン63を抜き忘れることによって発生する人為的ミス(操業中の面圧解除)を防止することができる。
なお、突設部62の底面周縁部は、安全レバー64よりも固定金枠18がわに位置しているため、スライド軸41、42の移動時に、突設部62が安全レバー64と接触することはない。
Claims (11)
- 溶融金属容器の底部に設置され、固定プレートを保持する固定金枠と、前記固定金枠に対して開閉可能とされ、摺動プレートを保持するスライド金枠と、前記スライド金枠を摺動させる摺動手段と、前記固定金枠に回動可能に装着され、前記スライド金枠を前記固定金枠に押圧するバネボックスとを備えるスライディングノズル装置において、
前記摺動手段と連動し、前記摺動手段が一方向に作動する間に、前記スライド金枠の押圧を解除して前記バネボックスを回動させ、前記摺動手段が他方向に作動する間に、前記バネボックスを回動させて前記スライド金枠を前記固定金枠に押圧するプレート交換補助手段を具備することを特徴とするスライディングノズル装置。 - 請求項1記載のスライディングノズル装置において、前記プレート交換補助手段は、前記摺動手段の作動方向に移動するスライド軸と、前記固定金枠に固着され前記スライド軸と係合する係合部材と、前記スライド軸に基端部が環装され、前記バネボックスに先端部が連結されたアームとを備え、
前記係合部材に形成された係合溝に、前記アームの基端部に装着された係合ピンが挿入され、前記スライド軸の移動に伴って、前記係合ピンが前記係合溝内を移動することにより前記アームが前記スライド軸を回動軸として回動し、該アームと連結する前記バネボックスが開方向又は閉方向に回動するスライディングノズル装置。 - 請求項1記載のスライディングノズル装置において、前記プレート交換補助手段は、前記摺動手段の作動方向に移動するスライド軸と、前記固定金枠に固着され前記スライド軸と係合する係合部材と、前記スライド軸に環装され、該スライド軸の回動に伴って回動する、前記バネボックスが固着された外筒とを備え、
前記スライド軸に形成された係合溝に、前記係合部材に装着された係合ピンが挿入され、前記スライド軸の移動に伴って、前記係合ピンが前記係合溝内を移動することにより前記スライド軸が回動し、該スライド軸の回動に伴って、前記外筒が回動し、前記バネボックスが開方向又は閉方向に回動するスライディングノズル装置。 - 請求項1記載のスライディングノズル装置において、前記プレート交換補助手段は、前記摺動手段の作動方向に移動するスライド軸と、前記固定金枠に固着され前記スライド軸と係合する係合部材と、前記スライド軸に環装され、該スライド軸の回動に伴って回動する、前記バネボックスが固着された外筒とを備え、
前記係合部材に形成された係合溝に、前記スライド軸に装着された係合ピンが挿入され、前記スライド軸の移動に伴って、前記係合ピンが前記係合溝内を移動することにより前記スライド軸が回動し、該スライド軸の回動に伴って、前記外筒が回動し、前記バネボックスが開方向又は閉方向に回動するスライディングノズル装置。 - 溶融金属容器の底部に設置され、固定プレートを保持する固定金枠と、前記固定金枠に対して開閉可能とされ、摺動プレートを保持するスライド金枠と、前記スライド金枠を摺動させる摺動手段と、前記固定金枠に回動可能に装着され、前記スライド金枠を前記固定金枠に押圧するバネボックスとを備えるスライディングノズル装置において、
前記摺動手段と連動し、前記摺動手段が一方向に作動する間に、前記スライド金枠の押圧を解除して前記バネボックスを回動させ、前記スライド金枠を開くと共に、前記摺動手段が他方向に作動する間に、前記スライド金枠を閉じ、前記バネボックスを回動させて前記スライド金枠を前記固定金枠に押圧するプレート交換補助手段を具備することを特徴とするスライディングノズル装置。 - 請求項5記載のスライディングノズル装置において、前記プレート交換補助手段は、前記摺動手段の作動方向に移動するスライド軸と、前記固定金枠に固着され前記スライド軸と係合する係合部材と、前記スライド軸に基端部が環装され、前記スライド金枠又は前記バネボックスに先端部が連結されたアームとを備え、
前記係合部材に形成された係合溝に、前記アームの基端部に装着された係合ピンが挿入され、前記スライド軸の移動に伴って、前記係合ピンが前記係合溝内を移動することにより前記アームが前記スライド軸を回動軸として回動し、該アームと連結する前記スライド金枠又は前記バネボックスが開方向又は閉方向に回動するスライディングノズル装置。 - 請求項5記載のスライディングノズル装置において、前記プレート交換補助手段は、前記摺動手段の作動方向に移動するスライド軸と、前記固定金枠に固着され前記スライド軸と係合する係合部材と、前記スライド軸に環装され、該スライド軸の回動に伴って回動する、前記バネボックス又は前記スライド金枠が固着された外筒とを備え、
前記スライド軸に形成された係合溝に、前記係合部材に装着された係合ピンが挿入され、前記スライド軸の移動に伴って、前記係合ピンが前記係合溝内を移動することにより前記スライド軸が回動し、該スライド軸の回動に伴って、前記外筒が回動し、前記バネボックス又は前記スライド金枠が開方向又は閉方向に回動するスライディングノズル装置。 - 請求項5記載のスライディングノズル装置において、前記プレート交換補助手段は、前記摺動手段の作動方向に移動するスライド軸と、前記固定金枠に固着され前記スライド軸と係合する係合部材と、前記スライド軸に環装され、該スライド軸の回動に伴って回動する、前記バネボックス又は前記スライド金枠が固着された外筒とを備え、
前記係合部材に形成された係合溝に、前記スライド軸に装着された係合ピンが挿入され、前記スライド軸の移動に伴って、前記係合ピンが前記係合溝内を移動することにより前記スライド軸が回動し、該スライド軸の回動に伴って、前記外筒が回動し、前記バネボックス又は前記スライド金枠が開方向又は閉方向に回動するスライディングノズル装置。 - 請求項2~4、6~8のいずれか1項に記載のスライディングノズル装置において、前記スライド軸上に該スライド軸に沿ってラックギアが装着されると共に、前記バネボックスに収納されたバネを圧縮又は圧縮解除する押圧ネジに、前記ラックギアと歯合するピニオンギアが装着され、前記スライド軸の移動に伴って前記押圧ネジが回転して前記バネを圧縮又は圧縮解除するスライディングノズル装置。
- 請求項2~4、6~8のいずれか1項に記載のスライディングノズル装置において、前記プレート交換補助手段は、前記摺動手段が当接する当接部を有し、前記摺動手段が前記他方向に作動して前記当接部に当接し、前記スライド軸が前記他方向に移動すると共に、前記プレート交換補助手段を連結治具で前記摺動手段に連結することで、前記摺動手段が前記一方向に作動して前記スライド軸が前記一方向に移動するスライディングノズル装置。
- 請求項2~4、6~8記載のスライディングノズル装置において、前記プレート交換補助手段を前記摺動手段に連結する連結治具に当接して一方向に回動する安全レバーを備えるスライディングノズル装置。
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RU2010151424/02A RU2475332C2 (ru) | 2008-05-16 | 2009-05-15 | Шиберное разливочное устройство |
EP09746677.5A EP2295173B1 (en) | 2008-05-16 | 2009-05-15 | Sliding nozzle device |
KR1020107026430A KR101248023B1 (ko) | 2008-05-16 | 2009-05-15 | 슬라이딩 노즐 장치 |
AU2009247180A AU2009247180B2 (en) | 2008-05-16 | 2009-05-15 | Sliding nozzle device |
BRPI0912739A BRPI0912739A2 (pt) | 2008-05-16 | 2009-05-15 | dispositivo de bocal deslizante |
US12/990,820 US8960508B2 (en) | 2008-05-16 | 2009-05-15 | Sliding nozzle device |
JP2010512035A JP5481374B2 (ja) | 2008-05-16 | 2009-05-15 | スライディングノズル装置 |
CN200980118362.8A CN102026750B (zh) | 2008-05-16 | 2009-05-15 | 滑动喷嘴装置 |
CA2722969A CA2722969C (en) | 2008-05-16 | 2009-05-15 | Sliding nozzle device |
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JP2016064439A (ja) * | 2014-09-25 | 2016-04-28 | 黒崎播磨株式会社 | スライディングノズル装置におけるスライド金枠の開閉構造 |
JP2019162659A (ja) * | 2018-03-20 | 2019-09-26 | 黒崎播磨株式会社 | スライディングノズル装置 |
US20230278096A1 (en) * | 2020-07-21 | 2023-09-07 | Refractory Intellectual Property Gmbh & Co. Kg | Slide Gate on the Spout of a Metallurgical Vessel |
US12103070B2 (en) * | 2020-07-21 | 2024-10-01 | Refractory Intellectual Property Gmbh & Co. Kg | Slide gate on the spout of a metallurgical vessel |
Also Published As
Publication number | Publication date |
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CA2722969C (en) | 2014-02-18 |
KR101248023B1 (ko) | 2013-03-27 |
AU2009247180B2 (en) | 2012-08-16 |
RU2010151424A (ru) | 2012-06-27 |
US20110101041A1 (en) | 2011-05-05 |
CN102026750A (zh) | 2011-04-20 |
KR20110009178A (ko) | 2011-01-27 |
JPWO2009139471A1 (ja) | 2011-09-22 |
EP2295173A1 (en) | 2011-03-16 |
CN102026750B (zh) | 2014-01-22 |
RU2475332C2 (ru) | 2013-02-20 |
JP5481374B2 (ja) | 2014-04-23 |
CA2722969A1 (en) | 2009-11-19 |
EP2295173B1 (en) | 2017-08-30 |
US8960508B2 (en) | 2015-02-24 |
AU2009247180A1 (en) | 2009-11-19 |
EP2295173A4 (en) | 2016-06-22 |
BRPI0912739A2 (pt) | 2015-10-13 |
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